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Patented 1an. 17, 1899.

w. B. MAsoN. kyPRESSURE REGULATGH.

(Appieatiqn med .my 10, 1897.) (No Model.) Y' 3 Sheets-Sheet l.

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en. $17,933. l Patenten man. n, |899. w. mxsun. Nessuna Resum-ma. (Application led July 10, 1897.) (No Mollet.) 3 Shsets-Shes 2.

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A u L No. 611933. n VPtenfed 1an. I7, l w. B. MASON.

PRESSURE REGULTUR.

(Application led July 10, 1897.)

3 Sheets-Sheet 3,

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MASON REGULATOR CChLlPANY, OF SAME TLLCE.

Passsuunefeoutaroe.

SEECXFICATION Apparition het July 1o,

To all whom it may concern;

Be it known that I, ll-VILLLeM B. MASON, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts7 have invented certain new and useful lmprovementsin Pressure-Regulators, of Which'the following is a specification, reference being had therein to the aecompanyihg drawings. My invention consists inla novel and iinproved construction of reducing-valve mechanisin.

vThe invention is fully set forth in the following description, and the novel features thereof are pointed out and clearly defined in 'the claims at the end of this specification.

` The accompanying drawings illustrate the best embodiment of the invention Whichfl have'yet contrived, in Which- A Figure 1 is a View in side elevation of the said embodiment. Fig. 2 is a view thereof in central vertical section, some of the parts being shown in elevation for greater elearness. Fig. 3 is a view in vertical section on a plane at right angles to that of Fig. v2, showing the balance-valve and valve-body, as also the valve-operating stern. Fig.y 4 is a view, on an enlarged scale, of a portion or" Fig. 2.

l will refer in the following, description to ,the reduction of steam-pressure, although, as

i will be obvious, the devices hereinafter explained may be employed for the reduction of the pressure of other iiuids, and l do not desireto limit myself to its use in the reduction of steam-pressure.

Having :reference to the drawings, 1 is the body or easing of a balanced valve, which body is provided at 2 2 with hanged connections, by means ci which itinay be inserted in a line o' pipe in the usual manner.

3 is the inletpassage, and el the outlet-pas,- sage, of the balanced valve.

5 is the valve proper or slide, which is arranged to slide vertically Within a housing or valve-seat in Well-known manner.

G is avalvestern, which passes through a suitable smiling-hex 7 in the top 8 ofthe valvebody. The upper end 9 of the stein is iitted ,to slide vertically in a bearing .that is formed in the upper end 10 of the upwardly-extend ing eurved arm 1l, which latter is secured to4 forming part of Letters Patent No. 617,933, dated January 1'?, 1899.

1897 Serial No. 644 ,O59. (No model.)

or formed integral 'with the to p S of the valve-- body. The part 10 is slotted vertically at 12, and a slot 13 is formed through the upper end 9 of the valveste1n. fr lever 1l, earrying a Weight lll, passes through the slots 12 and 13 and is pivoted at one end at 15, at the bottom. or rear end of the slot 12, in the arm 11. (See Fig. 2.) pivoted at 16 to a connecting-rod 17, the opposite -end of said connecting-rod 17 being pivoted to the upper end of a piston-rod 18, to which the piston 19 is secured. The pis` ton 19 slides in a eylinder 20, its rod 18 being fitted to an opening in the head 21 el the cylinde r. lt will be obvious that the vertical 'movement of thc piston 19 Will canse the movable part or slide et the balanced valve 5 to be moved, and thus opened cr closed. The mechanism by means of .which the piston 19 is caused to move as the pressure Varies on the low side of the valve, which pressure it is desired to regulate, is as fol lows: A is a sedimont-chaniber, 'whieh anged at the upper end, so that it may be securely bolted, as shown at 22, to the under side of the valve-body fi, said body being vided with flanges 23 for that purpose. The lower end of il e sediinentrhamber is pro; vided with a ov-oit oook, as shown at 2l.. The chamber l supplied by means of a pipe 25 with water under pressure, the pipe 25 connecting with any suitable source of water-supply. 'lhe outletpipe `26 enters the sedimentchamberA near the u pper end thereof, so that any sediment in the Water 'may allowed to settle and may be drawn oil or Cleaned out through the blow-oli cock 2e. The said outlet-pipe 2G, leading from the sediment-chain ber, connects with the `Wateiinlet 27 of the 31 is adapted to move 'vertically through an' opening in -the top or cap 32 of the bodyof the said valve 2S, and the lower end ol' this plunger is provided `with a valve-stem E33, which moves in a vertical opening in 'the valve v`body, said valve-stein having enlargements The other end of the lever 14, is I at 3l and 35, which fit the said vertical opening or passage. At the lower end of the valvebody 28 I provide a drip-opening 36. A passage 37 leads from the water-inlet 27 to the vertical valve-passage, and from a lower point ol the said valve-passage an opening or passage 38 leads through the projecting portion 29 to the cylinder-body, and thence down in' the" cylindenbody to a point near the lower end thereof, and thence into the cylinder above the lower headf thereof. The watervalve 28 may be termed a two-way valve. lVhen theJvalve-stem is raised, the watersupply is cut off and the water under the piston lil and in the passage 38 is allowed to escape through the drip-opening 36, thus removing pressure from the under side of the piston and permitting the piston to descend under the load of the weight 141 on the lever 14. When the valvestem is lowered, the drip is closed and the water is permitted to pass from the water-inletv through the passage 38 and under the piston 19, thereby causing the piston.l to move upwardly, thereby lifting the weight 141 and the lever 14. As will be clear, when the lever 14 is raised `the valve 5 will be opened and a larger amount oi steam or other fluid will be permitted to pass there through, and when the lever l-/l is lowered the movement of the said valve is reversed and the valve is gradually closed, It will bc clear, therefore, that the opening or closing of the waterwalve 28 will effect the opening or plosing of the valve 5. p i

For the purpose of controlling the move- -menlof the water-valve 2S and eiTectin g the opening or: closing of the valve i in accordyanpe with the variation of pressure on the lowpressure side of the said valve l provide agcylindrical lframe er base li, which is sup-V portedv upon a bracket-arm C, that is secured to or integral with the sediment-chamber A.

'lhe cylinder 2O is provided with a base 45 and is mounted uponlthe cylindrical base or support l5 and secured thereon by means of bolts flfl. 1Within the hase or support l and near the base thereof l secure a diaphragm 50, which may be of rubber or Iother suitable material, and which is provided on top' with a cylindrical disk or cover 52, which last is raised in the center, as shown at 53, and provided With a hardened bolt or pin 54, that is set in an opening in the disk 52, formed to rcceivc said pin 5l. lhc top ol' thc pin is wedgeshaped, forming a knife-edge, upon which rests a hardened block 57, that is provided upon the weighted lever l). A second hardcned block 5H on the said lever l) rests against liquely vmoving slide rtf?, the latter having its elevatedouter extremity furnished with a horizontal slot 64, which receives the said pin. 'The said slide 63 is fitted to an inclined hole in the head 21 of cylinder 20, and the lower end of the saidslide fits within a groove 65, that is formed in the side ofthe pistonrod 18. Thesaid lgroove varies in its depth, the said depth increasing gradually from the lower end thereof to' the upper end thereof. The bottom of the' groove therefore -acts as a longitudinally-extending cam as the pistonrod 18 rises and falls, it operating to occasion endwise movement of the slide 63. As the piston-rod is raised the said cam acts to force the slide 63 outwardly, raising the fulcrum end of thenfl sing lever, while as the pistonrod is lowered lthe said cam permits the slide .to move inwardly, thereby lowering thevfulerum end ofthe' 4floating lever. As will be understood, ,this action of the cam upon the fulcrum-slide 63 follows after movement has been communicated to the iioating'lever and to the valve-stem 33 of valve 28 from the lever D of the pressure-measuring devices, and it the valve'J 28 back into the position which closes the passage 38 against either the entrance otl water or the escape thereof after movement of the piston 19 in therequircd direction has taken place to the extentwhich is necessary in order to occasion the`movement of valve 5, which will restore the prcdetermined pressure on the lower side' of the said valve.

The feneral operation of the described dcvices will be obvious to thosewho are skilled in the art. Communication is established n1 usual manner between the line of pipe on the ,low-pressure side-of valve 5 and the pressuremeasuring devices, as by means of piping (not necessary to be shown) joined to the pipe `7.1. i, The said pipe 7l (see more particularl y Figi 4) communicates with passage-ways leading tb tho space beneath diaphragm {30,'so that the pressure onthe low-pressure sideof valve 5 is permitted to make itself felt at diaphragmO. When such pressure rises above the predetermined point, it. forces upward the diaphragm 50 and weighted levelI l), thereby through the link (50 turning the floating lever '61 about the' pivotal connection of the latter at 62 with slide 153. This raises the plunger 31 and valveistem 33, so as to out olf within the valve 28 the liquid-pressure acting beneath piston 19, and at the same time opens the drip-passage at 36, so as to allow the liquid which is under the piston l!) to escape and the piston to descend under the load. ol' weight 141 ony lever 14, thus causing valve 5 to close. Decreasevof pressure beneath diaphragm 50 will cause a lowering o`l valvestem 33, so as to open 'up the passage-ways leading through valve 28 to the underside ol'.

piston 19 and at the same time close the drip passage 36, permitting the liquid-pressure to act beneath piston 1U to raise the same and open the valve 5.

'operates to bring the' said valve-stem 33 of IOO Theat'tachment of the sediment-chamber .to the bodyor casing of the valve 5 and of 1 the pressure-measuring yand valveoperating mechanism to the said sediment-chamber secures a very compact and convenient an# rangement of the various parts. It enables all of the latter to be supported by the pipe to which the saidvalveis applied land dispenses with the necessity for providing separate supports for the pressure-measuring de- 'vices and valveoperating devices, as heretofore.

The pressure-measuring devices are removed from close proximity to the valve 5 and the pipe to which the latter is applied, so Athat the diaphragm 50 is not exposed to the` leverD, and the valve-operatin g deviees'commay be of any prise, essentially, the piston 19, the described connections from the said piston to the valve I 5, and the `descrilnad means of 'eletuatn'g the movements of the piston under the coml trol of lever D of the pre'ssnre-measurngde-' vices; but wish it to be understood that'I do not restrict myself to any particnlarconstruction of the valve at A5, of thev pressuremeasuring devices, of the operating connections of the movable part of Athe said valve at 5, or of the controllingvalve which is in e'onnection with the pressure-measuring devices. 'l'hesd'are not'of the gist of my invention and tion.

What I claim isy 1. The improved prossnrc-1'educing mechanism comprising the steam-valve as at 5, the sediment-chamber attached to 'the body or suitable or approved'construcf casing of tlic said valvc'and' receiving water under pressure, the pressure-,measuring deA vices mounted upon the said sediment-chamber, and the valve-operating devices in op- 1 erative connection with the pressure-measuring devices, mounted upon thecasing of the said pressure-measurin g devices, and adapted to receive the waterirom the said sediment-v chamber, all substantially as and for the purposes set forth. Y 2. Thescombination with the piston having a longitudinally-extending cam,.a movable fnlcrum-piece engaged by the said cam, the Heating lever connected with the lsaid fub .cram-piece, the valve having the valve-stem operatively connected with the said floating lever, and the pressure-measuring devices in operative connection with the said floating 65 A lever, substantially as described.

5. The .combination with the valve as at 5,

Y of the actuating-piston connected operatively withv the said valve and having a longitudinallyextending cam, a movable fulcrum vpiece engaged by thesaid' cam, the oating 'lever connected with the said fulcrum-piece,` the valve having the valve-stem operatively connected with the said floating lever, and the pressure-measuring devices in operative connection with the said floating lever, sub stantally .as described;

` 4. Thi-)combination with the valve at 5, of the' actnating-piston having a piston-rod which is connected operatively with tbe said 8o valve, the said piston-rod having the cam extending longitudinally thereof, the fulcrum slide in engagement with the said cam, the lioating lever pivotally connected with the said fulcrum-slidethe valve having the valvestem operatively connected with` the said Heating lever, and, the pressure-measuring y devices in operative connection with the said floating lever, substantially as described.

in presence of two witnesses.

WILLIAM n. MASON.

W itnesses;

UHAs. F. RANDALL, WM. A. MAcLnoD.

In testimony whereof I aliix my signature 9o' 

